Love the tie to the theme, very clever and outside of the box. The ancestry itself is really awesome. Well polished and full of really interesting options for customisation that all make the Hobgoblin feel like they'd fit right in with the pre-existing ancestries. It's the way so much care and attention has been put into it all the way down to the comparatively little things - like including name suggestions! - that especially really struck me about this submission.
Not to reveal my hand too much, but this is definitely one of my favourites. Fantastic job!